As a proverb puts it: "Be as shrewd as serpents and as innocent as doves." In other words, one can be shrewd: sharp-witted and exercise keen discernment in regards to those one encounters - weighing whether their motives are good or bad - if there's a green light to relax around them and trust them; if an amber light to keep one's wits locked and loaded, somewhat relaxing but remaining vigilant, at the end of one's chair ready to jump; or a red light to be as sharp as a hawk and run for the hills ASAP.
Yet at the same time, one can be innocent: by avoiding to make judgement calls on any given person as being 'bad' because of what one perceives as 'bad motives', or signs that they are unreliable, untrustworthy, etc., making a distinction between 'bad motives' and the person - so that it's a person with 'bad motives', as opposed to 'a bad person'. Such innocence also reminds me of children, who are usually very trusting of anyone (
@Scientia you sound like a rare child!

). Hence innocence can be associated with a kind of trust. Such trust and openness, is essential for healthy and deep interpersonal relationships to unfold. Thus perhaps after exercising our role as a serpent, we can then slowly ease ourselves into the role of the dove. This is the opposite of naivete, it's trusting after discerning.
Both roles need must go hand in hand, lest being only a serpent we become cynics - skeptical for the sake of it, almost misanthropes. Or lest by being only doves, we become naive push-overs who are easily manipulated and exploited.
With some people one can play the dove almost immediately. It's rare, but refreshing.
It's fairly clear that certain personality types are more naturally skilled in being serpents, some as doves; and more aptly, there's certain dimensions of being a serpent or dove that different 'types' are more naturally proficient at. INFJ's are quite proficient at being serpents - discerning the motives of others; and they can be very dove-like (open and trusting), yet with themselves and after that with select individuals; the quality of doveness does not come too natural when dealing with people in general - at least in my view - and this is something that can be developed through trying to see the good in others; so long as the serpent isn't thrown in the bin, but is brought to play side by side with the dove.
I think I just vomited a little from the mild triteness I employed above. Ah well
